#include <stdio.h>
#include <stdlib.h>
 
int main(){
    int i,j,k;
    int a,b;
    int **mat;
    scanf("%d %d",&a,&b);
    mat = (int **)malloc(sizeof(int *) * a);
    for(i=0; i<a; i++){
        mat[i] = (int *)malloc(sizeof(int) * b);
    }
    k = 1;
    for(i=0; i<a; i++){
        for(j=0; j<b; j++){
            mat[i][j] = k;
            k++;
        }
    }
    for(i=0;i<a;i++){
        for(j=0;j<b;j++){
            printf("%d ",mat[i][j]);
        }
        printf("\n");
    }
    for(i=0; i<a; i++){
        free(mat[i]);
    }
    free(mat);
 
    return 0;
}

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

NQo2Cgo=

5
6